# Trapezoidal thread forms

> Trapezoidal thread forms

**Wikidata**: [Q918548](https://www.wikidata.org/wiki/Q918548)  
**Wikipedia**: [English](https://en.wikipedia.org/wiki/Trapezoidal_thread_form)  
**Source**: https://4ort.xyz/entity/trapezoidal-thread-forms


## References

1. Freebase Data Dumps. 2013